Push bumper



FIG. 1 is a top, rear and right side perspective view of the push bumper showing our new design;

FIG. 2 is a rear side elevation view thereof;

FIG. 3 is a front side elevation view thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a right side elevation view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken line showings of the openings, connection protrusions and pads form no part of the claimed design. 

CLAIM We claim the ornamental design for a push bumper, as shown and described. 